I’m trying to set globalDecay and maxAge to a value greater than zero in a TMRegion. But I keep getting an AssertionError.

I looked at these docs, and they say that maxSynapsesPerSegment and maxSegmentsPerCell must be set to -1 to disable fixed-sized CLA mode, but setting those two parameters don’t seem to correct the problem.

Does anyone know how to set globalDecay and maxAge to values greater than zero?

I just did some debugging into the nupic library, and discovered in backtracking_tm_cpp.py on line 109, default values for maxSegmentsPerCell and maxSynapsesPerSegment are set to -1.

Additionally, when debugging I see the value of both maxSegmentsPerCell and maxSynapsesPerSegment are 4294967295 which is the maximum value for an unsigned int in C. It seems like there might be a problem with the C bindings converting the values input into the model params file, model.yaml, into an unsigned int, but should be converting it to a signed int.

At any rate, commenting out the following two lines from models.yaml solves the issue: